2020+ Silverado HD & Sierra HD Troubleshooting

528 topics in this forum

1. TPMS low pressure alert perplexion

   By Maninthesea, Saturday at 02:43 PM
   • 4 replies
   • 164 views
   • 
   • newdude
   • Sunday at 08:10 PM

3. Black Line Across Radio Screen

   By Core-Lokt, January 3
   • 10 replies
   • 440 views
   • 
   • Pryme
   • Saturday at 03:24 AM

4. 2022 Silverado 12V power receprtacle failed.

   By Phil P2, January 24
   • 4 replies
   • 213 views
   • 
   • Pryme
   • Friday at 02:57 PM

5. Steering wheel bump to center when applying brakes in a corner. 1 2

   By Jettech1, December 4, 2022
   • 15 replies
   • 659 views
   • 
   • Jettech1
   • Thursday at 07:52 PM

6. Alternator power to trailer 1 2

   By Rick Schleicher, November 12, 2022
   • 15 replies
   • 1.1k views
   • 
   • Jettech1
   • Wednesday at 07:15 PM

7. Rear end clunk on AT4 HD 1 2 3

   By souper, October 22, 2021
   • 38 replies
   • 3.4k views
   • 
   • Pryme
   • January 24

8. Whistling sound from drivers side at 45mph or greater 1 2

   By GMC4Zee, January 6
   • 29 replies
   • 682 views
   • 
   • Doodle
   • January 23

9. Power Steering Noise- started at 100 miles! 1 2

   By Limelight, February 4, 2020
   • 21 replies
   • 17.5k views
   • 
   • gemarsh
   • January 22

10. Changed Batteries and have reduced power and more.

    By Mattic33, January 10
    • 2 replies
    • 258 views
    • 
    • GMCustomerService
    • January 20

11. 2022 GMC At4 2500 service 4wd 1 2

    By Blue408 C, February 1, 2022
    • 18 replies
    • 4.1k views
    • 
    • GMCustomerService
    • January 20

12. Tailgate spontaneously opening 1 2 3 4 6

    By jsward12, February 26, 2021
    • 76 replies
    • 46.6k views
    • 
    • GMCustomerService
    • January 20

13. 2021 GMC Sierra 2500 Denali HD Tow Mirror - Issues

    By 2021GMCLP5, September 22, 2022
    • 11 replies
    • 1.2k views
    • 
    • GMCustomerService
    • January 20

14. Fuel Filter Re-Set on 2021 Silverado 2500HD with Duramax Diesel .....

    By Tucson Jack, January 19
    • 1 reply
    • 174 views
    • 
    • Tucson Jack
    • January 19

15. Multipro tailgate upper section lockout procedure - anyone used it successfully?

    By Another JR, November 3, 2022
    • 10 replies
    • 890 views
    • 
    • H20ENG
    • January 16

16. Blind Spot Monitoring w/Trailer

    By Skeld, January 11
    • 3 replies
    • 216 views
    • 
    • Skeld
    • January 12

17. No Trailer Connected Issue

    By Leon Baehre, March 7, 2020
    • 14 replies
    • 22.2k views
    • 
    • airbusdriver
    • January 11

18. Brakes Squeaking @ 10K 1 2 3 4 7

    By LarryM, September 16, 2020
    • 96 replies
    • 42.5k views
    • 
    • Hinzer
    • January 8

19. Center console locks intermittently when down

    By NaturallyAspirated, January 7
    • 0 replies
    • 114 views
    • 
    • NaturallyAspirated
    • January 7

20. Pro Tailgate Repair Questions

    By KuiMonster, January 5
    • 6 replies
    • 258 views
    • 
    • KuiMonster
    • January 6

21. 2022 silverado 1500 custom 3.5inch lift

    By Jj, January 5
    • 0 replies
    • 128 views
    • 
    • Jj
    • January 5

22. 2500 Bedlights on w/o mirror lights?

    By Mass2500HD, December 29, 2022
    • 2 replies
    • 275 views
    • 
    • Mass2500HD
    • December 29, 2022

23. Passenger battery distribution block diagram

    By Gunnar Jacobson, December 28, 2022
    • 6 replies
    • 433 views
    • 
    • Random
    • December 29, 2022

24. Fuel Filter Fizzing

    By AT4-DMAX-HD, December 26, 2022
    • 0 replies
    • 237 views
    • 
    • AT4-DMAX-HD
    • December 26, 2022

25. Center console is freezing

    By Mainliner, December 23, 2022
    • 3 replies
    • 523 views
    • 
    • Mainliner
    • December 26, 2022

26. Who designed the shift pattern on the automatic

    By TVJ, December 24, 2022
    • 1 reply
    • 330 views
    • 
    • Pryme
    • December 25, 2022